TOPCon Solar Cell Metallization Engineer

T1 Energy Inc.; Austin (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

T1 Energy Inc. is hiring a Cell Metallization Process Engineer for its G2 solar cell fab in Rockdale, Texas. You will own the metallization process, optimize paste chemistry, firing, and laser-related steps to achieve high-efficiency TOPCon devices at scale.

You will develop DOEs, calibrate “golden cells,” and coordinate with upstream/downstream teams to integrate metallization with thermal treatments and QA/QC. 3+ years in solar cell metallization is expected.

Qualifications

• Bachelor's degree or higher in a relevant engineering or science field.
• 3+ years of process engineering in solar cell manufacturing.
• Expertise in screen printing, firing, and paste chemistry for solar cells.
• Experience with DOE, SPC, and data analysis for process optimization.
• Familiarity with TOPCon or related cell architectures (PERC/HJT/IBC).

Responsibilities

• Own SPC for metallization including process excursions affecting Voc, Isc, FF, EL/PL.
• Maintain documentation on screen printing parameters and run DOEs.
• Oversee ramp-up of the screen printing module and testing/sorting module for efficiency grading.
• Develop front and rear contact metallization processes focusing on furnace profiles and paste rheology.
• Collaborate with thermal diffusion, deposition, and quality teams to optimize interfacial parameters.
• Drive DOE execution across paste formulation, mesh/emulsion, squeegee dynamics, and firing.
• Qualify new paste materials and screen suppliers; evaluate next-generation metallization solutions.
• Partner with equipment engineering to troubleshoot yield losses and process excursions.
• Support technology transfer and scale-up as G2 ramps to full production.

Skills

Solar cell metallization

Screen printing

Firing

DOE

SPC

Data analysis

Cross-functional collaboration

Education

Bachelor's degree in Materials Science or related field

Tools

Python

JMP

Excel

Job description

T1 Energy Inc. is hiring a Cell Metallization Process Engineer for its G2 solar cell fab in Rockdale, Texas. You will own the metallization process, optimize paste chemistry, firing, and laser-related steps to achieve high-efficiency TOPCon devices at scale.

You will develop DOEs, calibrate “golden cells,” and coordinate with upstream/downstream teams to integrate metallization with thermal treatments and QA/QC. 3+ years in solar cell metallization is expected.